.page-contact {
  display: block;
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--pad-x);
  padding-block: clamp(14px, 2vw, 28px) clamp(56px, 8vw, 104px);
}

.page-contact a {
  color: var(--orange-deep);
  text-underline-offset: 3px;
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 36px);
  padding-block: clamp(8px, 1.4vw, 18px) clamp(30px, 4vw, 54px);
  border-bottom: 1px solid var(--line);
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 1fr);
    align-items: center;
    gap: clamp(28px, 4.4vw, 72px);
  }
}

.page-contact .contact-hero__title {
  margin: 0 0 clamp(14px, 1.8vw, 22px);
  font-size: clamp(30px, 5.6vw, 62px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--ink);
  text-wrap: balance;
}

.page-contact .contact-hero__lede {
  margin: 0 0 clamp(16px, 2vw, 24px);
  max-width: 58ch;
  font-size: clamp(16px, 1.3vw, 18px);
  line-height: 1.75;
  color: var(--ink);
}

.page-contact .contact-hero__keys {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .contact-hero__keys li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-left: 14px;
  border-left: 2px solid var(--line);
  font-size: 15px;
  line-height: 1.6;
  color: var(--muted);
}

.page-contact .contact-hero__keys .mono {
  flex: none;
  min-width: 48px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--orange-deep);
}

.page-contact .contact-hero__media {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: linear-gradient(148deg, var(--night), var(--ink));
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 36px), 0 100%);
  box-shadow: var(--shadow);
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-contact .contact-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(200deg, rgba(5, 22, 38, 0.06) 38%, rgba(5, 22, 38, 0.62));
  pointer-events: none;
}

/* ---------- 章节基调 ---------- */

.page-contact .chapter {
  padding-block: clamp(34px, 4.6vw, 64px);
  border-bottom: 1px solid var(--line);
}

.page-contact .chapter:last-of-type {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .chapter__meta {
  max-width: 62ch;
}

/* ---------- 01 联络对照表 ---------- */

.page-contact .contact-ledger {
  margin-top: clamp(18px, 2.6vw, 32px);
  border-top: 2px solid var(--ink);
}

.page-contact .contact-ledger__head {
  display: none;
}

@media (min-width: 860px) {
  .page-contact .contact-ledger__head {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr;
    gap: 24px;
    padding: 12px 0;
    border-bottom: 1px solid var(--line);
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: 0.12em;
    color: var(--muted);
  }
}

.page-contact .contact-ledger__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  padding: clamp(16px, 2.2vw, 24px) 0;
  border-bottom: 1px solid var(--line);
  transition: background-color 0.14s var(--ease);
}

@media (min-width: 860px) {
  .page-contact .contact-ledger__row {
    grid-template-columns: 1.2fr 1fr 1fr;
    gap: 24px;
    align-items: start;
  }
}

.page-contact .contact-ledger__row:hover {
  background: rgba(255, 106, 26, 0.045);
}

.page-contact .contact-ledger__intent {
  display: flex;
  gap: 12px;
  align-items: baseline;
}

.page-contact .contact-ledger__intent .mono {
  flex: none;
  padding: 2px 7px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--paper);
  background: var(--ink);
}

.page-contact .contact-ledger__intent p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.65;
  color: var(--ink);
}

.page-contact .contact-ledger__route {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}

.page-contact .contact-ledger__addr {
  font-size: 12px;
  line-height: 1.5;
  color: var(--orange-deep);
  word-break: break-all;
}

.page-contact .contact-ledger__hint {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 02-04 联络资料卡 ---------- */

.page-contact .contact-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: clamp(20px, 2.8vw, 34px);
}

@media (min-width: 760px) {
  .page-contact .contact-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1180px) {
  .page-contact .contact-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .page-contact .contact-channel:nth-child(2) {
    margin-top: 28px;
  }

  .page-contact .contact-channel:nth-child(3) {
    margin-top: 56px;
  }
}

.page-contact .contact-channel {
  position: relative;
  padding: clamp(22px, 2.4vw, 28px) clamp(18px, 2vw, 24px) clamp(20px, 2.2vw, 26px) clamp(22px, 2.4vw, 30px);
  background: var(--paper-card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  transition: transform 0.12s var(--ease), border-color 0.12s var(--ease), box-shadow 0.12s var(--ease);
}

.page-contact .contact-channel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 4px;
  height: 78px;
  background: var(--orange);
}

.page-contact .contact-channel::after {
  content: "";
  position: absolute;
  left: 0;
  top: 78px;
  bottom: 0;
  width: 1px;
  background: var(--line);
}

.page-contact .contact-channel:hover {
  transform: translateY(-4px);
  border-color: var(--lime);
  box-shadow: 0 22px 44px -34px rgba(5, 22, 38, 0.6);
}

.page-contact .contact-channel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
}

.page-contact .contact-channel__num {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-contact .contact-channel__title {
  margin: 0 0 12px;
  font-size: clamp(18px, 1.6vw, 22px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .contact-channel__value {
  margin: 0 0 16px;
  padding: 10px 12px;
  font-family: var(--mono);
  font-size: clamp(12.5px, 1.1vw, 15px);
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink);
  background: rgba(10, 37, 64, 0.05);
  border-left: 2px solid var(--orange);
  word-break: break-word;
}

.page-contact .contact-channel__value--text {
  font-family: var(--sans);
  font-size: clamp(14px, 1.15vw, 15.5px);
  font-weight: 500;
  line-height: 1.7;
}

.page-contact .contact-channel__list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .contact-channel__list li {
  position: relative;
  padding-left: 16px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--ink);
}

.page-contact .contact-channel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  background: var(--lime);
}

.page-contact .contact-channel__foot {
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 05 合作与投稿 ---------- */

.page-contact .partner-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 38px);
  margin-top: clamp(18px, 2.6vw, 32px);
}

@media (min-width: 1024px) {
  .page-contact .partner-layout {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }
}

.page-contact .partner-grid {
  margin-top: 20px;
}

.page-contact .partner-card {
  transition: transform 0.12s var(--ease), box-shadow 0.12s var(--ease);
}

.page-contact .partner-card:hover {
  transform: translateY(-4px);
}

.page-contact .partner-card h3 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 800;
  color: var(--ink);
}

.page-contact .partner-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ink);
}

.page-contact .partner-card__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 7px;
}

.page-contact .partner-card__list li {
  position: relative;
  padding-left: 14px;
  font-size: 13.5px;
  line-height: 1.62;
  color: var(--muted);
}

.page-contact .partner-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 5px;
  height: 5px;
  background: var(--amber);
}

.page-contact .partner-layout__aside {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-contact .partner-media {
  margin: 0;
}

.page-contact .partner-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-contact .partner-note {
  position: relative;
  padding: clamp(20px, 2.2vw, 26px) clamp(20px, 2.2vw, 26px) clamp(18px, 2vw, 24px) clamp(24px, 2.6vw, 32px);
  background: var(--night);
  color: var(--paper);
}

.page-contact .partner-note::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--orange);
}

.page-contact .partner-note__title {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.005em;
  color: var(--paper);
}

.page-contact .partner-note p {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.72;
  color: rgba(247, 242, 232, 0.82);
}

.page-contact .partner-note a {
  color: var(--amber);
}

.page-contact .partner-note ul {
  list-style: none;
  margin: 0 0 12px;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-contact .partner-note ul li {
  position: relative;
  padding-left: 14px;
  font-size: 14px;
  line-height: 1.65;
  color: rgba(247, 242, 232, 0.86);
}

.page-contact .partner-note ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  background: var(--lime);
}

.page-contact .partner-note__foot {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: rgba(247, 242, 232, 0.66);
}

/* ---------- 06 服务地区与回复节奏 ---------- */

.page-contact .region-band {
  position: relative;
  overflow: hidden;
  margin-top: clamp(18px, 2.6vw, 30px);
  padding: clamp(24px, 3vw, 40px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 2.6vw, 34px);
  background: linear-gradient(135deg, var(--night) 0%, var(--ink) 58%, #123457 100%);
  color: var(--paper);
}

.page-contact .region-band::before {
  content: "";
  position: absolute;
  top: -70px;
  right: -50px;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, rgba(255, 106, 26, 0.4), transparent 68%);
  pointer-events: none;
}

.page-contact .region-band::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 92px;
  height: 5px;
  background: var(--lime);
  pointer-events: none;
}

@media (min-width: 900px) {
  .page-contact .region-band {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: center;
  }
}

.page-contact .region-band__text {
  margin: 0 0 12px;
  font-size: clamp(16px, 1.35vw, 18px);
  line-height: 1.78;
  color: var(--paper);
}

.page-contact .region-band__sub {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(247, 242, 232, 0.72);
}

.page-contact .region-band__sub a {
  color: var(--amber);
}

.page-contact .region-band__stats {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 20px;
}

.page-contact .region-stat {
  padding-top: 12px;
  border-top: 2px solid rgba(255, 106, 26, 0.72);
}

.page-contact .region-stat dt {
  margin-bottom: 8px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: rgba(247, 242, 232, 0.6);
}

.page-contact .region-stat dd {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-size: 14px;
  line-height: 1.4;
  color: var(--paper);
}

.page-contact .region-stat__num {
  font-family: var(--mono);
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--amber);
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-channel,
  .page-contact .partner-card,
  .page-contact .contact-ledger__row {
    transition: none;
  }

  .page-contact .contact-channel:hover,
  .page-contact .partner-card:hover {
    transform: none;
  }
}